My family knows Har-Prakash Khalsa well, and while this work appears to rely heavily on anecdotal descriptions of this condition called 'cessation', his photographic work that he develops in tandem to his meditation practice is pretty impressive. I'm not sure if that ads anything to the discussion, but the pictures are nice to look at.

http://art.harprakashkhalsa.com/exhibitions/true-nature.php

If people are interested in his meditation practice, he has some youtube videos up.

Steps to meditation http://www.youtube.com/watch?v=ZAUR0DNDnj8

Nature of the intellect http://www.youtube.com/watch?v=tPrm7YaaU1Y